I've been watching the eBay auctions, waiting for "just the right" mpvr to bid on. I've also found another participant here very active in the bidding.

As I noted elsewhere tonight, I discovered that if I leave my 920 turned on, but doing nothing, it times out and shuts off. However, if it is recording or playing back, it will stay going as long as there's memory space or power. My test ran out of memory space in 20 minutes. This means the 920 will do the one thing I thought I needed an MPVR for, which is recording for up to half an hour, using a remote lens head.

As a result, I'm rapidly losing interest in getting an MPVR, and looking forward to getting a 520 or something similar.